Swea City is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 92% of adults in Swea City typically vote, above the U.S. average of about 62%. Among adults in Swea City, ~22% vote Democratic, ~70% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.
How Swea City compares
Among cities within 25 miles, Swea City leans more Republican than 23 of 41 neighbors.
Swea City runs about 39 points more Republican than Iowa as a whole.
Politics vary noticeably by neighborhood within Swea City. The west side is the most Republican-leaning (R+60) and the south side is the least Republican-leaning (R+49), a spread of about 11 points.
Why Swea City leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Swea City. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; Swea City, IA sits above the national average on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Swea City looks the way it does
Turnout in Swea City sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ledyard, IA R+57
- Seneca, IA R+55
- Armstrong, IA R+47
- Bancroft, IA R+53
- Lakota, IA R+54
- Pilot Grove, MN R+53
- Lone Rock, IA R+46
- Ringsted, IA R+52
- Fenton, IA R+53
- Elmore, MN R+46
Cities with Similar Populations
- Phoenix, GA R+56
- Jacks Creek, TN R+72
- Rich Hill, OH R+55
- Machiasport, ME R+23
- Chatsworth, NJ R+37
- Sedgewickville, MO R+72
- Taylortown, NC D+21
- Hudson, WY R+61
- Luella, GA R+33
- San Patricio, TX R+59
Sources and methodology
Precinct-level voting records used to fit the model come from Iowa Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.